Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | SIMATIC S7-400 SM 422 digital output module |
| Digital outputs | 16 isolated DO |
| Rated load voltage | 230 V; 120/230 V AC |
| Permissible load-voltage range | 79 V to 264 V |
| Permissible frequency range | 47 Hz to 63 Hz |
| Rated output current, signal "1" | 2 A |
| Output current range, signal "1" | 10 mA to 2 A |
| Permissible surge current | 50 A per cycle |
| Response time, max. | 100 ms |
| Output delay with resistive load | 1 ms from "0" to "1"; 1 AC cycle from "1" to "0" |
| Isolation tested with | 1 500 V AC |
| Product lifecycle | Announcement of product phase-out |
Applications
- Digital load control: The outputs support controlling a digital input and redundant control of a load by parallel switching of two outputs, only with outputs having the same load voltage.
- Motor starter control: The outputs support motor starters up to Size 5 according to NEMA.
Key Features
- 16 isolated digital outputs: SM 422 provides 16 digital outputs with potential separation between channels in groups of 4 and between the channels and the backplane bus.
- AC load voltage: Rated load voltage is 230 V; the supported load-voltage designation is 120/230 V AC, with a permissible range of 79 V to 264 V and frequency range of 47 Hz to 63 Hz.
- Output current: Signal "1" output current is rated at 2 A, with a permissible range of 10 mA to 2 A and permissible surge current of 50 A per cycle.
- Output protection and diagnostics: Short-circuit protection is provided. The INTF red LED indicates a blown fuse, and the EXTF red LED indicates missing load voltage; diagnostics are not parameterizable.
- Output timing: With a resistive load, output delay is maximum 1 ms from "0" to "1" and maximum 1 AC cycle from "1" to "0".
- Module dimensions and weight: Dimensions are 25 mm width, 290 mm height, and 210 mm depth; weight is approximately 800 g.
Frequently Asked Questions
1. How many digital outputs does 6ES7422-1FH00-0AA0 have?
It has 16 isolated digital outputs, with potential separation between channels in groups of 4.
2. What load voltage and output current does this module support?
The rated load voltage is 230 V within the 120/230 V AC designation. Signal "1" output current is rated at 2 A, with a permissible range of 10 mA to 2 A.
3. Does 6ES7422-1FH00-0AA0 provide short-circuit protection?
Yes. Short-circuit protection is provided, but reclosing under a full load cannot be ensured after a short-circuit.
4. What diagnostics indications are available?
The INTF red LED indicates a blown fuse, and the EXTF red LED indicates missing load voltage. The diagnostics function is not parameterizable.
